DE888317C - Process for the extraction of the tin found in old car coolers or in similarly composed waste materials in the form of Loetzinn - Google Patents

Process for the extraction of the tin found in old car coolers or in similarly composed waste materials in the form of Loetzinn

Info

Publication number
DE888317C
DE888317C DEK9851D DEK0009851D DE888317C DE 888317 C DE888317 C DE 888317C DE K9851 D DEK9851 D DE K9851D DE K0009851 D DEK0009851 D DE K0009851D DE 888317 C DE888317 C DE 888317C
Authority
DE
Germany
Prior art keywords
tin
waste materials
loetzinn
extraction
similarly composed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEK9851D
Other languages
German (de)
Inventor
Otto Dr Nielsen
Otto Ritzau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kupferwerk Ilsenburg A G
Original Assignee
Kupferwerk Ilsenburg A G
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kupferwerk Ilsenburg A G filed Critical Kupferwerk Ilsenburg A G
Priority to DEK9851D priority Critical patent/DE888317C/en
Application granted granted Critical
Publication of DE888317C publication Critical patent/DE888317C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B25/00Obtaining tin
    • C22B25/06Obtaining tin from scrap, especially tin scrap
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Description

Verfahren zur Gewinnung des in alten Autokühlern oder in ähnlich zusammengesetzten Altmaterialien in Form von Lötzinn sich vorfindenden Zinns Es ist festgestellt worden, daß alte, ausgebaute Autokühler, selbst nach dem Entzinnen durch Ausschmelzen nach bekannte: Verfahrensweisen, immer noch einige Prozente Zinn (q. bis 5010, manchmal mehr, manchmal weniger) enthalten. Nach bekannter Technik werden die Autokühler auf Kupfer verhüttet durch Einschmelzen und Verblasen, wobei das in, den Kühlern enthaltene Zinn zum Teil verloren, zum Teil in Flugstäbe geht, in denen es kaum oder gar nicht bewertet werden kann. Nach vorliegender Erfindung werden die alten Autokühler, vor oder nach dem Entzinnen, in dieselbe Apparatur genommen, die zur Entplattierung von Kupfer und kupferlegierungsha,ltigem plattiertem Material benutzt wird. Unter den. Autokühlern befinden sich zum Teil eiserne Kühler, die als solche nicht erkannt werden, vereinzelt auch andere eiserne Teile. Bei dem Löseverfahren geht also nur Kupfer öder Messing in Lösung, während in, den Lösegefäßen das Lot und, Eisenteile zurückbleiben. In diesem Zustand ist es leicht, die Eisenteile von dem Lotrückstand durch Auslesere zu trennen. Das zurückgebliebene Lotmaterial kann in an sich bekannter Weise gereinigt werden, beispielsweise dadurch,, da,ß man dien Rückstand. unter Vermeidung von oxydierenden Einflüssen ausschmilzt. Der sich hierbei ergebende kupferhaltige Rückstand gzhrt wieder zum Löseprozeß zurück, um auch die letzten anhaftenden Zinnmengen. zu gewinnen.Process for the recovery of the tin found in old car radiators or in similarly composed waste materials in the form of tin solder It has been found that old, dismantled car radiators, even after detinning by melting out according to known: procedures, still a few percent tin (q. To 5010, sometimes more, sometimes less). According to known technology, the car coolers are smelted on copper by melting and blowing, whereby the tin contained in the coolers is partly lost and partly goes into flying rods, in which it can hardly or not at all be assessed. In accordance with the present invention, the old automobile radiators, before or after detinning, are placed in the same apparatus that is used to de-plating copper and copper alloy-containing clad material. Under the. Car radiators are partly equipped with iron radiators that are not recognized as such, and occasionally other iron parts. During the dissolving process, only copper or brass goes into solution, while the solder and iron parts remain in the dissolving vessels. In this state, it is easy to separate the iron parts from the solder residue by sorters. The remaining solder material can be cleaned in a manner known per se, for example by using the residue. melts away while avoiding oxidizing influences. The resulting copper-containing residue is fed back to the dissolving process to remove the last remaining amounts of tin. to win.

Claims (2)

PATENTANSPRÜCHE: r. Verfahren zur Gewinnung des in. alten Autokühlern oder in ähnlich zusammengesetzten, verzinnten Altmaterialien, in Form von Lötzinn sich vorfindenden Zinns, dadurch gekennzeichnet, daß die Autokühler oder die Artmaterialien in eine Lösevorrichtung gebracht werden, die die Kupferlegierungen zur Auflösung bringt, worauf aus. dem verbliebenen Löserückstand das Zinn gereinigt und gewonnen wird. PATENT CLAIMS: r. Process for the recovery of the tin found in old car coolers or in similarly composed, tinned waste materials in the form of solder, characterized in that the car cooler or the type materials are brought into a dissolving device which dissolves the copper alloys, whereupon from. The tin is cleaned and recovered from the remaining solution residue. 2. Ausführungsweise des Verfahrens, nach Anspruch z, dadurch gekennzeichnet, daß man zur Aufarbeitung des gewonnenen Löserückstandes diesen in neutraler Atmosphäre ausschmilzt und die sich hierbei ergebenden Rückstände dem ersten Löseprozeß wieder zuführt.2. Mode of execution of the method according to claim z, characterized in that that to work up the solution residue obtained this in a neutral atmosphere melts out and the resulting residues return to the first dissolution process feeds.
DEK9851D 1943-04-18 1943-04-18 Process for the extraction of the tin found in old car coolers or in similarly composed waste materials in the form of Loetzinn Expired DE888317C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK9851D DE888317C (en) 1943-04-18 1943-04-18 Process for the extraction of the tin found in old car coolers or in similarly composed waste materials in the form of Loetzinn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK9851D DE888317C (en) 1943-04-18 1943-04-18 Process for the extraction of the tin found in old car coolers or in similarly composed waste materials in the form of Loetzinn

Publications (1)

Publication Number Publication Date
DE888317C true DE888317C (en) 1953-08-31

Family

ID=7212623

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK9851D Expired DE888317C (en) 1943-04-18 1943-04-18 Process for the extraction of the tin found in old car coolers or in similarly composed waste materials in the form of Loetzinn

Country Status (1)

Country Link
DE (1) DE888317C (en)

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